Several vulnerabilities have been discovered in wpa_supplicant and hostapd.
CVE-2020-12695 It was discovered that hostapd does not properly handle UPnP subscribe messages under certain conditions, allowing an attacker to cause a denial of service.
CVE-2021-0326 It was discovered that wpa_supplicant does not properly process P2P (Wi-Fi Direct) group information from active group owners. An attacker within radio range of the device running P2P could take advantage of this flaw to cause a denial of service or potentially execute arbitrary code.
CVE-2021-27803 It was discovered that wpa_supplicant does not properly process P2P (Wi-Fi Direct) provision discovery requests.
An attacker within radio range of the device running P2P could take advantage of this flaw to cause a denial of service or potentially execute arbitrary code.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-4898. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(148967);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/16");
script_cve_id("CVE-2020-12695", "CVE-2021-0326", "CVE-2021-27803");
script_xref(name:"DSA", value:"4898");
script_xref(name:"CEA-ID", value:"CEA-2020-0050");
script_name(english:"Debian DSA-4898-1 : wpa - security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
script_set_attribute(attribute:"description", value:
"Several vulnerabilities have been discovered in wpa_supplicant and
hostapd.
- CVE-2020-12695
It was discovered that hostapd does not properly handle
UPnP subscribe messages under certain conditions,
allowing an attacker to cause a denial of service.
- CVE-2021-0326
It was discovered that wpa_supplicant does not properly
process P2P (Wi-Fi Direct) group information from active
group owners. An attacker within radio range of the
device running P2P could take advantage of this flaw to
cause a denial of service or potentially execute
arbitrary code.
- CVE-2021-27803
It was discovered that wpa_supplicant does not properly
process P2P (Wi-Fi Direct) provision discovery requests.
An attacker within radio range of the device running P2P
could take advantage of this flaw to cause a denial of
service or potentially execute arbitrary code.");
script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=976106");
script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981971");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2020-12695");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-0326");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-27803");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/wpa");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/wpa");
script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2021/dsa-4898");
script_set_attribute(attribute:"solution", value:
"Upgrade the wpa packages.
For the stable distribution (buster), these problems have been fixed
in version 2:2.7+git20190128+0c1e29f-6+deb10u3.");
script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-0326");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-27803");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/06/08");
script_set_attribute(attribute:"patch_publication_date", value:"2021/04/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/04/23");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:wpa");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"10.0", prefix:"hostapd", reference:"2:2.7+git20190128+0c1e29f-6+deb10u3")) flag++;
if (deb_check(release:"10.0", prefix:"wpagui", reference:"2:2.7+git20190128+0c1e29f-6+deb10u3")) flag++;
if (deb_check(release:"10.0", prefix:"wpasupplicant", reference:"2:2.7+git20190128+0c1e29f-6+deb10u3")) flag++;
if (deb_check(release:"10.0", prefix:"wpasupplicant-udeb", reference:"2:2.7+git20190128+0c1e29f-6+deb10u3")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | wpa | p-cpe:/a:debian:debian_linux:wpa |
debian | debian_linux | 10.0 | cpe:/o:debian:debian_linux:10.0 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12695
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0326
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27803
bugs.debian.org/cgi-bin/bugreport.cgi?bug=976106
bugs.debian.org/cgi-bin/bugreport.cgi?bug=981971
packages.debian.org/source/buster/wpa
security-tracker.debian.org/tracker/CVE-2020-12695
security-tracker.debian.org/tracker/CVE-2021-0326
security-tracker.debian.org/tracker/CVE-2021-27803
security-tracker.debian.org/tracker/source-package/wpa
www.debian.org/security/2021/dsa-4898